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| 型號(hào)： | CAT5132 |
| 英文描述： | 16-Bit Bus Transceiver With 3-State Outputs 54-BGA MICROSTAR JUNIOR -40 to 85 |
| 中文描述： | 15伏數(shù)字可編程電位（民進(jìn)黨）的128抽頭和2線接口 |
| 文件頁(yè)數(shù)： | 8/13頁(yè) |
| 文件大?。?/td> | 245K |
| 代理商： | CAT5132 |
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CAT5132
8
Doc. No. 25092, Rev. 00
2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Figure 5. Access Register Addressing Using 3 Bytes
Table 2. Byte 1 Slave Address and Instruction Byte
h
2
0
-
s
s
e
d
a
R
A
on
i
e
s
)
0
0
R
D
/
)
0
8
R
WC
T
S
0
1
0
1
0
0
0
0
A
0
0
0
0
0
0
1
0
A
1
0
0
0
0
0
0
0
A
T
S
0
1
0
1
0
0
0
0
A
0
0
0
0
0
0
1
0
A
0
0
0
0
0
0
0
0
A
P
S
1st byte
2nd byte
3rd byte
S
A
A
S
I
I
I
I
I
A
A
W
A
SP
Table 1. Access Control Register
DEVICE DESCRIPTION
Access Control Register
The volatile register WCR and the non-volatile register
DR of CAT5132 are accessed only by addressing the
volatile Access Register AR first, using the 3 byte I
2
C
interface for all read and write operations (see Table 1).
The first byte is the slave address/instruction byte (see
details below). The second byte contains the address
(02h) of the AR register. The data in the third byte
controls which register WCR (80h) or DR (00h) is being
addressed (see Figure 5).
Slave Address Instruction Byte Description
The first byte sent to the CAT5132 from the master
processor is called the Slave/DPP Address Byte. The
most significant five bits of the slave address are a
device type identifier. These bits for the CAT5132 are
fixed at 01010 (refer to Table 2).
The next two bits, A1 and A0, are the internal slave
address and must match the physical device address
which is defined by the state of the A1 and A0 input pins
to successfully address the CAT5132. Only the device
with slave address matching the input byte will be
accessed by the master. This allows up to 4 devices to
reside on the same bus. The A1 and A0 inputs can be
actively driven by CMOS input signals or tied to V
CC
or
Ground.
The last bit is the READ/WRITE bit and determines the
function to be performed. If it is a
“
1
”
a read command is
initiated and if it is a
“
0
”
a write is initiated. For the AR
register only write is allowed.
After the Master sends a START condition and the slave
address byte, the CAT5132 monitors the bus and
responds with an acknowledge (on the SDA line) when
its address matches the transmitted slave address.
SLAVE
ADDRESS
& INSTRUCTION
S
A
C
K
A
C
K
S
T
O
P
P
BUS ACTIVITY:
MASTER
SDA LINE
S
T
A
R
T
A
C
K
FIXED
VARIABLE
AR REGISTER
ADDRESS
WCR/DR
SELECTION
r
e
d
e
p
y
T
e
c
e
D
s
s
e
d
A
e
v
a
/
a
e
R
e
W
4
D
I
3
D
I
2
D
I
1
D
I
0
D
I
1
A
0
A
/
R
W
0
1
0
1
0
X
X
X
)
B
S
M
(
)
B
S
L
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| CAT5132ZGI-10 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT5132ZI-00-G | 功能描述:數(shù)字電位計(jì) IC Ind Temp 100K 2-Wire RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| CAT5132ZI-00-GT3 | 功能描述:數(shù)字電位計(jì) IC DPP 15V 128 taps I2C RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| CAT5132ZI-10-G | 功能描述:數(shù)字電位計(jì) IC Ind Temp 10K 2-Wire RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| CAT5132ZI-10-GT3 | 功能描述:數(shù)字電位計(jì) IC DPP,15V,128 taps,I2C RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
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